1 files changed, 170 insertions, 0 deletions
diff --git a/src/gui/truetypefont.cpp b/src/gui/truetypefont.cpp
new file mode 100644
index 00000000..bf95ca37
--- /dev/null
+++ b/src/gui/truetypefont.cpp
@@ -0,0 +1,170 @@
+/*
+ *  The Mana World
+ *  Copyright 2004 The Mana World Development Team
+ *
+ *  This file is part of The Mana World.
+ *
+ *  The Mana World is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  any later version.
+ *
+ *  The Mana World is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with The Mana World; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ *  $Id$
+ */
+
+#include "truetypefont.h"
+
+#include <list>
+
+#include <guichan/exception.hpp>
+
+#include "../graphics.h"
+#include "../resources/image.h"
+
+#define CACHE_SIZE 30
+
+class TextChunk
+{
+    public:
+        TextChunk(const std::string &text, gcn::Color color) :
+            img(NULL), text(text), color(color)
+        {
+        }
+
+        ~TextChunk()
+        {
+            delete img;
+        }
+
+        bool operator==(const TextChunk &chunk) const
+        {
+            return (
+                chunk.text == text && chunk.color == color);
+        }
+
+        void generate(TTF_Font *font)
+        {
+            SDL_Color sdlCol;
+            sdlCol.b = color.b;
+            sdlCol.r = color.r;
+            sdlCol.g = color.g;
+
+            SDL_Surface *surface = TTF_RenderUTF8_Blended(
+                    font, text.c_str(), sdlCol);
+
+            if (!surface)
+            {
+                throw "Rendering font to surface failed: " +
+                    std::string(TTF_GetError());
+            }
+
+            img = Image::load(surface);
+
+            SDL_FreeSurface(surface);
+        }
+
+        Image *img;
+        std::string text;
+        gcn::Color color;
+};
+
+
+// Word surfaces cache
+static std::list<TextChunk> cache;
+typedef std::list<TextChunk>::iterator CacheIterator;
+
+
+TrueTypeFont::TrueTypeFont(const std::string& filename, int size)
+{
+    if (!TTF_WasInit() && TTF_Init() == -1)
+    {
+        throw GCN_EXCEPTION("Unable to initialize SDL_ttf: " +
+            std::string(TTF_GetError()));
+    }
+
+    mFont = TTF_OpenFont(filename.c_str(), size);
+
+    if (mFont == NULL)
+    {
+        throw GCN_EXCEPTION("SDLTrueTypeFont::SDLTrueTypeFont: " +
+            std::string(TTF_GetError()));
+    }
+}
+
+TrueTypeFont::~TrueTypeFont()
+{
+    TTF_CloseFont(mFont);
+
+    if (TTF_WasInit())
+    {
+        TTF_Quit();
+    }
+}
+
+void TrueTypeFont::drawString(gcn::Graphics *graphics,
+                               const std::string &text,
+                               int x, int y)
+{
+    if (text.empty())
+    {
+        return;
+    }
+
+    Graphics *g = dynamic_cast<Graphics *>(graphics);
+
+    if (!g)
+    {
+        throw "Not a valid graphics object!";
+    }
+
+    gcn::Color col = g->getColor();
+
+    TextChunk chunk(text, col);
+
+    bool found = false;
+
+    for (CacheIterator i = cache.begin(); i != cache.end(); i++)
+    {
+        if (chunk == (*i))
+        {
+            // Raise priority: move it to front
+            cache.splice(cache.begin(), cache, i);
+            found = true;
+            break;
+        }
+    }
+
+    // Surface not found
+    if (!found)
+    {
+        if (cache.size() >= CACHE_SIZE)
+        {
+            cache.pop_back();
+        }
+        cache.push_front(chunk);
+        cache.front().generate(mFont);
+    }
+
+    g->drawImage(cache.front().img, x, y);
+}
+
+int TrueTypeFont::getWidth(const std::string& text) const
+{
+    int w, h;
+    TTF_SizeUTF8(mFont, text.c_str(), &w, &h);
+    return w;
+}
+
+int TrueTypeFont::getHeight() const
+{
+    return TTF_FontHeight(mFont);
+}